control c(inout bit<32> b) {
    action a() {
        b = 1;
    }
    table t {
        actions = { a; }
        default_action = a;
    }

    apply {
        switch(t.apply().action_run) {
            a: { b[6:3] = 1; }
        }
    }
}

control empty(inout bit<32> b);
package top(empty _e);

top(c()) main;
